| 摘要 |
A composition suitable for topical application to human skin for reducing the damaging effects of ultra-violet light on skin comprises: (a) an effective amount of a triester of citric acid having the structure (1): (1) where R1, R2 and R3 each independently represent a branched or unbranched alkyl,alkenyl, aryl, alkylaryl or arylakyl group, each said group being optionally substituted and having from 1 to 18 carbon atoms, R4 represents -H, or a branched or unbranched saturated or unsaturated acyl, alkyl, aryl, alkylaryl or arylalkyl group, each said group being optionally substituted and having from 1 to 18 carbon atoms; and (b) a cosmetically acceptable vehicle for the citric acid ester; and (c)an effective amount of a sunscreen agent, with the proviso that in the case where the sunscreen agent is an inorganic sunscreen, it has an average particle size of less than 100.mu.m.
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